Publications [#283828] of Qing H. Liu

Papers Published

1. Tang, Z; Liu, QH, The 2.5D FDTD and Fourier PSTD methods and applications, Microwave and Optical Technology Letters, vol. 36 no. 6 (March, 2003), pp. 430-436, WILEY [doi]
   (last updated on 2023/08/08)

   Abstract:
   In this work, 2.5-dimensional finite-difference time-domain (FOTD) and pseudospectral time-domain (PSTD) algorithms are developed for electromagnetic waves in media that are invariant in one spatial dimension. Both algorithms use Berenger's perfect matched layer (PML) as an absorbing boundary condition. The FDTD method is an extension of Yee's 3D algorithm to 2.5D. The PSTD algorithm uses the fast Fourier transform to approximate spatial derivatives, and gives a much higher accuracy than the FDTD method. Numerical results have been validated by comparing them with analytical solutions. The methods have been applied to ground-penetrating-radar and dielectric-waveguide problems. © 2003 Wiley Periodicals, Inc.